40426533 has 80 divisors (see below), whose sum is σ = 74156544. Its totient is φ = 21461760.

The previous prime is 40426523. The next prime is 40426537. The reversal of 40426533 is 33562404.

40426533 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 653 + 3 = 666.

It is not a de Polignac number, because 40426533 - 2⁴ = 40426517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 40426497 and 40426506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40426537) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 860116 + ... + 860162.

Almost surely, 2^40426533 is an apocalyptic number.

It is an amenable number.

40426533 is a deficient number, since it is larger than the sum of its proper divisors (33730011).

40426533 is a wasteful number, since it uses less digits than its factorization.

40426533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 40426533 is about 6358.1862979941. The cubic root of 40426533 is about 343.2064959160.

Adding to 40426533 its reverse (33562404), we get a palindrome (73988937).

The spelling of 40426533 in words is "forty million, four hundred twenty-six thousand, five hundred thirty-three".